By Kokai-Data
3-tier competitor brief (overview / scale / certifications) for a Japanese company from gBizINFO public canonical sources.
Format the ACBS 4-layer authority strip in Kokai-generated outputs. Apply to all briefs that include Kokai data. 日本語 keyword: 出典階層 / 4 階層 出典 / 引用層 / authority strip 整形 / ACBS 4 層.
Search for a Japanese company by name (Japanese / kana / Latin / hiragana, 2+ chars) when you do not have the 13-digit 法人番号. Returns matches from the gBizINFO registry. 日本語 keyword: 会社検索 / 法人検索 / 企業検索 / 会社名から法人番号 / 法人名で企業検索.
Look up a Japanese company's detailed profile (financials, capital, employees, certifications) from gBizINFO via the kokai MCP server. Use when you have a 13-digit 法人番号. 日本語 keyword: 法人情報取得 / 企業情報検索 / 法人番号で企業調査 / 商談相手調査 / 経営情報取得 / 会社プロファイル取得.
Use the kokai MCP server's `kokai_competitor_corporate_brief_jp` prompt to prepare a 3-tier competitor brief (overview / scale / certifications) for a Japanese company. 日本語 keyword: 競合 brief プロンプト / 競合調査 frame / 競合 brief framework.
Get authoritative Japanese corporate-number record from the National Tax Agency (国税庁) with change history (社名変更 / 移転 / 合併 / 解散). Use for M&A DD, KYC verification, dissolved-company detection, gBizINFO fallback. 日本語 keyword: 国税庁 法人番号 lookup / 異動履歴 確認 / 解散合併 確認 / 法人 master 取得 / NTA 法人番号.
Uses power tools
Uses Bash, Write, or Edit tools
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AI-citable Japanese public business intelligence for all AI agents — 6-source Authority Chain: corporate registries (gBizINFO + 国税庁 法人番号 公表 Web-API), government subsidies (J-Grants), listed-company IR (EDINET 金融商品取引法開示書類), statutory law (e-Gov 法令検索, デジタル庁), and government procurement (官公需情報ポータル, 中小企業庁) with 士業 + investment-disclaimer boundary safety. For AI builders (Claude / Cursor / Codex / OpenAI App Server / all MCP clients), Japanese 士業 (行政書士 / 中小企業診断士 / 公認会計士 / 税理士 / 弁護士 / 司法書士), investment professionals, M&A advisors, and B2G sales / consulting teams.
This is the Japan-market equivalent of Anthropic's financial-services agent templates, focused on Japanese public canonical data sources. It is open source under Apache License 2.0 and packages Kokai Data (an AI-citable public business intelligence MCP server) as both a universal MCP server (for all AI clients) and Claude plugins + managed agents (for Anthropic ecosystem sugar).
Kokai Data follows a 2-layer architecture for AI agent ecosystem neutrality:
| Layer | What | Who can use it |
|---|---|---|
| L1: Universal MCP server | https://mcp.kokai.ai/functions/v1/mcp-server — implements MCP spec 2025-06-18 | All MCP clients: Claude Code / Claude Cowork / Claude Managed Agents / Claude.ai (connectors layer) / Cursor / Codex / OpenAI App Server / any custom MCP client. Setup via .mcp.json config (no Plugin required). |
| L2: Anthropic Plugin sugar (this repo) | Kokai-Data/japan-business-data — bundles Skills, slash commands, managed-agent cookbook, and auto-registers the MCP server | Anthropic ecosystem users: Claude Code (CLI + Desktop App) / Claude Cowork / Claude Managed Agents. Plugin install auto-configures everything (no manual .mcp.json editing). |
Non-Claude clients (Cursor / Codex / etc.) do NOT need to install this Plugin — they connect to the MCP server directly via their own .mcp.json (see Path 4 below). The Plugin layer is purely Anthropic-ecosystem distribution sugar (auto-install / auto-update / Skills auto-invocation).
This dual approach matches Kokai's brand promise: AI agent ecosystem neutral, not tied to any single AI provider.
| Brand | Kokai Data |
| Marketplace handle | kokai |
| GitHub repository | Kokai-Data/japan-business-data |
| Plugin (recommended install) | kokai-data |
| MCP server | mcp.kokai.ai |
| Trade sub-brand | Kokai Trade |
The recommended install is the kokai-data plugin (/plugin install kokai-data@kokai) — the brand-bearing core plugin that bundles the MCP server, slash commands, and skills. The marketplace handle is kokai (brand-first); the GitHub repo stays Kokai-Data/japan-business-data.
The core plugin was renamed from japan-public-business-intelligence to kokai-data (for brand visibility in the Claude Code plugin list). If you installed the legacy plugin, please re-install:
japan-public-business-intelligence (or remove it in the GUI plugin list)./plugin install kokai-data@kokai.Your existing slash commands (/企業調査, /提案準備, etc.) work the same after re-install.
Kokai provides signal / 確認材料 / context, not decisions. Subsidy 適格性, 申請可否, legal interpretation, 訴訟戦略, bid eligibility, tax, or professional judgments are out of scope and must be verified by a certified Japanese 士業 (registered advisor: 行政書士 / 中小企業診断士 / 公認会計士 / 税理士 / 弁護士 / 司法書士). Never fictionalize company, subsidy, statute, or procurement facts — use only Kokai tool/prompt outputs and cited public sources.
This Plugin is for:
npx claudepluginhub kokai-data/japan-business-data --plugin competitor-brief-jpJapanese government procurement (Call for Tender) discovery from 官公需情報ポータル (中小企業庁). Phase 1 = bid notice discovery only — awarded results / price signals deferred to Phase 2.
Kokai Data — 日本の公開ビジネスデータ (gBizINFO 法人 / J-Grants 補助金 / 国税庁 / EDINET / e-Gov 法令 / 官公需) + 通関(Trade) を、出典つきで AI エージェントから引用。slash commands + skills + MCP server。
Prepare a 1-page brief for a Japanese company before a meeting using cited public data (gBizINFO + J-Grants).
Top-N Japanese subsidies for an industry or use-purpose theme (landscape scan), with J-Grants citation per subsidy.
Japanese legal research from e-Gov 法令検索 (デジタル庁) — cited statute lookup + regulatory landscape mapping with 弁護士 / 行政書士 / 司法書士 boundary.
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